The Three Strikes measure, adopted in 1994, imposed longer prison sentences upon an offender who had prior convictions for crimes classified as either violent or serious. The law specifically requires that an offender who has one prior serious or violent felony conviction shall receive a prison sentence that is twice the term otherwise required by law for a conviction of any new felony offense. These offenders are sometimes referred to as “second-strikers.” If the offender has two or more previous serious or violent felony convictions, the mandatory prison sentence upon conviction for any new felony is at least 25 years to life. These offenders are sometimes referred to as “third-strikers.”